Odoo博客封面图片没有显示(Odoo blog cover image not showing)

 我创建了自定义的最新博客模板。 但我无法在缩略图中显示封面图片。 
 
 封面图片应该在这里： 
 
  
 
 我已经编写了以下代码来显示封面图片： 
 
<div class="panel">
    <t t-set="properties" t-value="json.loads(post.cover_properties)">
       <a class="o_panel_cover" t-attf-href="#{blog_url('', ['blog', 'post'], blog=post.blog_id, post=post)}" t-att-style="background-image: #{cover_properties.get('background-image')};">
       </a>
    </t>
    <div class="panel-heading mt0 mb0">
        <h4 class="mt0 mb0">
          <a t-attf-href="#{blog_url('', ['blog', 'post'], blog=post.blog_id, post=post)}" t-field="post.name"></a>
          <span t-if="not post.website_published" class="text-warning">
             <span class="fa fa-exclamation-triangle ml8" title="Unpublished"/>
          </span>
        </h4>
    </div>
 
 
 写入代码图像后不加载，它显示如下： 
 
  
 
 我如何显示图像？ 

I have created custom latest blog template. But I can't show cover images in thumbnails.
 
Cover image should be here:
 
 
I have written following code to show the cover image:
 
<div class="panel">
    <t t-set="properties" t-value="json.loads(post.cover_properties)">
       <a class="o_panel_cover" t-attf-href="#{blog_url('', ['blog', 'post'], blog=post.blog_id, post=post)}" t-att-style="background-image: #{cover_properties.get('background-image')};">
       </a>
    </t>
    <div class="panel-heading mt0 mb0">
        <h4 class="mt0 mb0">
          <a t-attf-href="#{blog_url('', ['blog', 'post'], blog=post.blog_id, post=post)}" t-field="post.name"></a>
          <span t-if="not post.website_published" class="text-warning">
             <span class="fa fa-exclamation-triangle ml8" title="Unpublished"/>
          </span>
        </h4>
    </div>
 
 
After writing the code image not loading and it shows like this:
 
 
How can I show the image?

原文：https://stackoverflow.com/questions/40797953